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. Author manuscript; available in PMC: 2013 Sep 17.
Published in final edited form as: Spine J. 2009 Apr 23;9(7):545–550. doi: 10.1016/j.spinee.2009.03.005

Table 1.

Prevalence of congenital and acquired lumbar spinal stenosis in the population-based sample.

Type of LSS Relative (≤12 mm)
(N=191)		 Absolute (≤10 mm)
(N=191)
N % (95% CI) N % (95% CI)
Congenital 9 4.71% (2.18–8.76%) 5 2.62% (0.86–6.00%)
Acquired 14 22.50% (16.80–29.10%) 14 7.30% (4.07–11.99%)
Any type 45 23.60% (17.73–30.23%) 16 8.40% (4.86–13.25%)